...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Medicine, science, and the law >Development of a computational biomechanical infant model for the investigation of infant head injury by shaking.
【24h】

Development of a computational biomechanical infant model for the investigation of infant head injury by shaking.

机译：开发一种生物力学的婴儿力学模型，用于研究摇动引起的婴儿头部受伤。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The inertial loading thresholds for infant head injury are of profound medico-legal and safety-engineering significance. Injurious experimentation with infants is impossible, and physical and computational biomechanical modelling has been frustrated by a paucity of paediatric biomechanical data. This study describes the development of a computational infant model (MD Adams?) by combining radiological, kinematic, mechanical modelling and literature-based data. Previous studies have suggested the neck as critical in determining inertial head loading. The biomechanical effects of varying neck stiffness parameters during simulated shakes were investigated, measuring peak translational and rotational accelerations and rotational velocities at the vertex. A neck quasi-static stiffness of 0.6 Nm/deg and lowest rate-dependent stiffness predisposed the model infant head to the highest accelerations. Plotted against scaled infant injury tolerance curves, simulations produced head accelerations commensurate with those produced during simulated physical model shaking reported in the literature. The model provides a computational platform for the exploitation of improvements in head biofidelity for investigating a wider range of injurious scenarios.
机译：婴儿头部受伤的惯性负荷阈值具有深远的医学法律和安全工程意义。不可能对婴儿进行伤害性实验，并且由于缺乏儿科生物力学数据，物理和计算生物力学建模受到了挫败。这项研究通过结合放射学，运动学，机械模型和基于文献的数据描述了计算婴儿模型（MD Adams？）的发展。先前的研究表明，颈部对于确定惯性头部负荷至关重要。研究了在模拟摇晃过程中颈部刚度参数变化的生物力学效应，测量了顶点的平移和旋转加速度以及旋转速度。 0.6 Nm / deg的颈部准静态刚度和最低的速率相关刚度使模型婴儿的头部具有最高的加速度。根据比例缩放的婴儿伤害耐受曲线绘制，模拟产生的头部加速度与文献中报道的模拟物理模型摇动产生的头部加速度相当。该模型为研究头部生物保真度的改进提供了一个计算平台，用于研究更广泛的伤害性情景。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号